As we know, Cisco IOS software releases are so many and each release has other releases inside it, For example, the 12.4T IOS has releases such as 12.4(24)T and 12.4(15)T. This concept also applies to other releases such as 12.3,12.2 and 12.1.
To avoid confusion, i need an advice from an expert to guide me which release is the best for me. I know that it depends on my requirements and the services that i need to run in my environment such as security, voice, wireless and so on. However, what is the main release that is combining all these features in one box? ..... Do i need to compare each release manually in order to know what i need?....
I appreciate your response and support.